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deepak/proc_vars_list.rb

Created December 15, 2010 08:32
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proc_vars_list
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proc_vars_list.rb
# thanks to banister
# functions are better as they have a different scope - keep the scope under control
str = "hello world"
arr = (1..100).to_a
def foo(str)
Proc.new { str.size }.binding.eval("local_variables + instance_variables")
end
p foo(str) #["str"]
p Proc.new { str.size }.binding.eval("local_variables + instance_variables") #["str", "arr"]
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